A water soluble Ni-Schiff base complex for homogeneous green catalytic C S cross-coupling reactions

Biswas, Biplab; Choudhury, Prasun; Ghosh, Angshuman; Dubey, Soumen Kumar; Rizzoli, Corrado; Saha, Rajat; Bhattacharjee, Subham

doi:10.1016/j.ica.2021.120755

Cited by 8 publications

(4 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[114] Finally, greening of CÀ S couplings based on the design of water-soluble catalysts has allowed the use of water as solvent [115] (Scheme 21). For example the N,N,N,NÀ Ni(II) complex (18-Ni) catalyzed the coupling of aryl-halides and thiols in water at 60 °C in 6 h. [116] The reaction tolerates functional groups such as methoxy and nitro, but the reaction did not proceed using chlorobenzene as substrate. Further, the salen-based Ni(II)complex (19-Ni) catalyze the coupling of sulfonyl-hydrazines and aryl-halides in water.…”

Section: Nickel Catalystsmentioning

confidence: 99%

C−S Cross‐Coupling Reactions Catalyzed by Well‐Defined Copper and Nickel Complexes

2022

View full text Add to dashboard Cite

This review presents well-defined copper and nickel complexes that have been used in the formation of CÀ S bonds. The use of Cu or Ni catalysts represent an advantage in comparison with those based on precious metals such as Pd, by being two of the most abundant metals in the earth's crust and thus cheaper. As can be expected the catalytic activity of the different Cu and Ni complexes is strongly dependent on the nature of the ligands used. Thus, multidentate and strong electron-donating ligands are of common use to design highly active species since such ligands are capable to stabilize species in high oxidation states which are key intermediates in the reaction mechanisms of these processes. This being particular true in the case of copper, where Cu(III) produces unstable and reactive species that require an "extra stabilization" during the reaction mechanism. Hence, the reaction mechanisms using copper and nickel complexes as catalysts are also discussed in this paper, including the role of the different ligands during the catalytic processes. Although there is an increasing number of reports on CÀ S cross coupling reactions, due to the relevance of this transformation, they are often difficult to reproduce and not of general use since the actual catalytic species are not identified. Thus, we hope that this report will help to promote the search and synthesis of new ligands for the design of more active welldefined complexes that can be used as catalysts in a more rational manner in the formation of valuable CÀ S bondcontaining species.

show abstract

Section: Nickel Catalystsmentioning

confidence: 99%

C−S Cross‐Coupling Reactions Catalyzed by Well‐Defined Copper and Nickel Complexes

2022

View full text Add to dashboard Cite

show abstract

“…The solubility or dispersibility of water was also increased by modifying polar groups to Schiff bases and by combining Schiff bases with metal ions to form ligand bonds with water. 14,15 For example, Chellan et al obtained novel water-soluble Schiff base metal complexes ([CuL(H 2 O) 3 ]) using glycylglycine and 4-nitrobenzaldehyde. Furthermore, the complexes showed well anticancer effects against HeLa (IC 50 : 14 mg mL −1 ) and HCT116 (IC 50 : 10 mg mL −1 ).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of carbon dot based Schiff bases and selective anticancer activity in glioma cells

Zhuang,

Zhu,

Chen

et al. 2024

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Hence, millets should be integral to the cropping system under irrigated and rainfed conditions for food, nutritional security, and agricultural sustainability (Priya et al, 2023;Sengupta et al, 2024;Chakrabarti et al, 2024). Their potential to thrive under environmental stress made them suitable crops for climate change and global warming, including dietary importance for food and nutritional security (Mallick et al, 2016;Mallick, 2017;Eseroghene and Ikechukwu, 2018;Brahmachari et al, 2018;Biswas et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Different Finger Millet (Eleusine coracana L. Gaertn.) Cultivars for Growth, Productivity and Nutrient Quality of Grains Under Hot and Subhumid Region of Odisha

Guntamukla,

Sairam,

Maitra

et al. 2024

IJERR

View full text Add to dashboard Cite

Millets are cultivated world-wide and are more prominent in South Asian and African countries. Among different millets, finger millets hold a significant position in terms of area and productivity. Due to negligence in various cultivation practices and improper selection of genotypes, most farmers fail to achieve optimum yields. In this scenario, the choice of a suitable cultivar is essential. Considering the above, an experiment was conducted at Post Graduate Research Farm of Centurion University of Technology and Management, Odisha, to evaluate suitable cultivars of finger millet. The study consisted of eight treatments comprising of V1: VL Mandua, V2: Hima, V3: Indravathi, V4: Vegavathi, V5: Champavathi, V6: Suvarnamukhi, V7: Bharathi, V8: Sri Chaitanya. The treatments were replicated thrice and the randomized block design was implemented. The results revealed that the highest plant height (158 cm) was observed with the cultivar Bharathi. Indravathi recorded the highest dry matter accumulation at harvest (776 g m-2), leaf area index at 50 DAT (3.56) and number of tillers at 50 DAT (66). However, the highest effective tillers per m2 (2.3) were recorded with the cultivar Sri Chaitanya, and the highest number of grains per ear head and weight per ear head were registered in the Bharathi variety. Further, the highest numbers of fingers per ear head (8.4), 1000 grain weight (2.82g), weight of grains hill-1 (6.72g) and length of finger (7.7cm) were recorded in the variety Indravathi. The cultivar Indravathi recorded the highest grain (2315 kg ha-1), stover (5372 kg ha-1) and biological yield (7687 kg ha-1) and Sri Chaitanya followed it. The study concludes that Indravathi and Sri Chaitanya can be considered short-duration and Hima as long duration cultivar for obtaining higher yield during Kharif season (July to September) under the hot and subhumid regions of Odisha.

show abstract

A water soluble Ni-Schiff base complex for homogeneous green catalytic C S cross-coupling reactions

Cited by 8 publications

References 52 publications

C−S Cross‐Coupling Reactions Catalyzed by Well‐Defined Copper and Nickel Complexes

C−S Cross‐Coupling Reactions Catalyzed by Well‐Defined Copper and Nickel Complexes

Synthesis of carbon dot based Schiff bases and selective anticancer activity in glioma cells

Performance Evaluation of Different Finger Millet (Eleusine coracana L. Gaertn.) Cultivars for Growth, Productivity and Nutrient Quality of Grains Under Hot and Subhumid Region of Odisha

Contact Info

Product

Resources

About